Hand-tool.



PATENTBD APR. 11 1905.

S. J. WELTER.

HAND TOOL.

APPLICATION FILED JUNE 16, 1904.

SICBAS'IIAN J. WELTFJR,

Patented April 11, 1905.

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

HAND-TOOL.

SPECIFICATION forming part of Letters Patent No. 787,064, dated April11, 1905.

Application led June 15,1904. Serial No. 212,742.

To fr// Ich/)1a if '1n/(W con/cera:

Be it known that I, SnBAs'rLxN J. VELTER, a citizen of the UnitedStates, residing in Chicago, in the county of Oook and State ofIllinois, have invented certain new and useful Improvements inlland-rlfools, of which the following is a specification.

This invention relates to hand-tools, and more particularly to punches,awls, drills, and the like, and has among its salient obljects toprovide a easing for the penetrating member of such tool, having alubricatingchamber through which said penetrating member works, wherebyit is thoroughly lubricated as it emerges from the casing each time topenetrate the object upon which it is used; to provide a spring withinsaid casing operating to withdraw the penetrating member after it hasbeen 'forced into the thing penetrated, and in general to provide improvements in the details of construction and arrangement tending toproduce a durable, efficient, and practicable hand-tool of the characterreferred to. il am aware that centering-tools have been provided 'with asimilar' casing for the penetrating member; but in each instance thecasing acts merely as a guide to center the penetrating member of thetool, and in none of them is there any suggestion of alubricatingchamber for lubricating the penetrating member as it does itswork. This feature makes a most desirable and effective improvement inthe operation of tools adapted to be used in hardwood, the penetratingmember of the tool being made capable of being withdrawn by a spring,whereas without the lubrication it sticks and is with more or lessditliculty withdrawn manually. Again, the spring provided in my deviceis of such tension that when the tool is being driven with a hammer intohardwood finishing it acts as a cushion under the blow, therebypreventing the jarring which so often results in the loosening of theplastering and causing other damage.

The invention will be readily understood from the following description,reference being had to the :wcompanying drawings, in w hich i Figure Iis a vertical sectional view of a tool embodying the present invention.Fig. 2 is a transverse sectional view taken on line 2 2 of Fig. I, andFig. 3 is a fragmentary View showing side elevation of one form of punchused, the edge elevation being shown in Fig. I.

Referring to the drawings, l designates a tubular metal casing slightlyreduced in its interior diameter near the lower end thereof to provideshoulders 2, upon which is mounted a washer 3, whereby a chamber 4 isvformed in the lower end of the casing, into which is placed anabsorbent material saturated with oil or other lubricating matter -for apurpose hereinafter referred to.

5 designates a punch or awl secured in the present instance to a shank(5, provided at its upper end with a head-piece-T, and the whole mountedwithin the casing lV with the punch 5 extending through the washer 3 andthe lubricatiiig-chamber 4 in the manner shown.

S designates a. coiled spring mounted upon the shank G and resting atone end upon the washer Il and against the head-piece T at its other endand tends to keep the punch withdrawn in the position shown in Fig. l ofthe drawings.

At diametrieally opposite sides on the interior of the casing I, nearits upper end, are two longitudinally-extending grooves 9, within whichare arranged to work the opposite ends of a through-pin It), extendingtransversely through the head-piece 7, said pin being limited in itsupward movement within said grooves by a cap ll, mounted upon the upperend of the casing 1 and through which the head-piece 7 works. It willthus be seen that the tool proper re.- eiprocates within the casing,which mayr be of any desired and suitable material, and that itsmovement is confined to the length of the grooves in the constructionshown, which is of course sullicient to permit the punch or awl 5 to beextended its full length out of the casing l. If the casing is madeentirely of metal, its surface may be roughened in any desired manner,as by milling or 1 nu rling, to facilitate the gripping thereof. lt

may be of wood with metal end pieces.

The punch or awl here shown is provided with a chisel-like edge, whichwhen driven into hardwood crosswise of the grain cuts its way andprevents splitting of the wood, as is so often the case with a roundpunch or nail. It is obvious that other forms of punches may be used asmay be best adapted to the particular work.

12 designates a hole for a nail or pin to facilitate the unscrewing ofthe shank 6 from the head-piece when it is desired to change the form ofpunch..

It will be obvious from the above that as the penetrating member of thetool emerges from the lower end of the casing within which is thelubricating-chamber 4 it is freshly lubricated each time, whereupon itis more easily driven into the hardwood or other substance and is alsomore easily drawn out of said wood or other substance, the tension ofthe spring S being sufficient of itself to withdraw the tool from thesubstance penetrated when the penetrating member is lubricated in themanner described. One blow of the hammer is su'Hicient to send the punchinto the hardwood or other substance the full length of the eX- posedhead-piece 7, while the spring S is strong enough to withdraw itpromptly after the blow.

It will be obvious that alterations and modifications can be made in thedetails of construction and arrangement without departing from thespirit of the invention7 and I do not, therefore, limit the invention tothe details shown and described, except in so far as they are made thesubject-matter of specific claims.

I claiml. In a hand-tool, a penetrating member, a handpiece constitutinga casing therefor and through which said penetrating memberreciprocates, said casing being provided with a lubricating-Chamb erthrough which said penetrating member works, whereby it is lubricated asit emerges from said casing.

2. In a hand-tool, the combination with a handpiece, of a penetratingmember mounted to reciprocate therethrough, a spring mounted within saidhandpiece upon said penetrating member and operating to draw saidpenetrating member into itsv normal position relative to said handpiece,and means forming a part of said hand-tool and automatically lubricatingthe penetrating point said penetrating member and operating to f drawthe penetrating member out of the work and into the handpiece, and meansfor lubricating said penetrating member automatically as it reciprocateswithin said handpiece, for the purpose described.

5. A hand-tool, comprising in combination a handpiece, a penetratingmember mounted to reciprocate within said handpiece, a headpiece towhich said penetrating member is removably attached, a coiled springmounted within said handpiece and upon said penetrating member andoperating to draw the penetrating member from thework into thehandpiece, and a lubricating-chamber within said handpiece through whichsaid penetrating member reciprocates, for the purpose described.

6. In a hand tool of the character described, a handpiece constituting acasing.

ably mounted upon said head-piece and reciprocating therewith, saidcasing having in its lower end a lubricating-chamber, lubricating matterwithin said chamber through which said penetrating member works as itemerges from said casing, and a spring mounted upon said penetratingmember within said handpiece and operating to positively draw saidpenetrating member from the work and into the casing, substantially asdescribed.

SEBASTIAN J. l/VELTER. Witnesses:

WV. R. LITZENBERG, L. F. MCCREA.

IOO

